Bower SDF680C Digital Flash for Canon SLR Cameras, Guide Number 139

Bower SDF 680: Picture 1 thumbnail Bower SDF 680: Picture 2 thumbnail Bower SDF 680: Picture 3 thumbnail Bower SDF 680: Picture 4 thumbnail Bower SDF 680: Picture 5 thumbnail

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About Bower SDF 680

The Bower SFD680C Digital Shoe Mount Flash is an economical flash, with TTL flash support for digital SLR cameras. This version is dedicated to the Canon digital SLR camera line and fully supports Canon's E-TTL II flash operating system.

The flash features an auto-zoom flash head, which auto-senses the focal length of the camera's lens and adjusts itself accordingly, within the range of 28mm to 85mm. It can also tilt and swivel for complete creative control. Its light output can be adjusted with a range of +/-1 EV in 0.5 increments (5 settings). It is an ideal economical all-around flash for any digital or 35mm autofocus SLR shooter.

Bower SDF 680 Features

  • Bounce & Swivel Head: Flash features vertical bounce and horizontal swivel
  • AF Assist: Autofocus auxiliary lamp helps the camera to focus in low-light situations
  • Fast Recycling: IGBT fast recycling circuitry allows for 4-6 sec. recycling times (at full power)
  • Power Saving: Power saving shut-off

Bower SDF 680 Specifications

Camera Type
Direct hotshoe contact mount
Guide No
42 in meters/139 in feet at 85mm (ISO 100)
IGBT (Insulated Gate Bipolar Transistor)
Automatic TTL range
1 - 21m / 3.3 - 69ft (F2.0)
AF illumination range
1 - 8.0m / 3.0 - 26ft
Angle of illumination
Bounce Angle
Up 30-45-60-75-90
Swivel Angle
Left 60-75-90-120-150-180/Right 60-75-90-120-150
Exposure check confirmation
Green Auto Check Lamp
Flash Duration
Flash Duration
Dual Power Off
3 minutes (Auto Sleep)
8 minutes (power shutdown)
Color temperature
Number of flashes
Approximate 100 - 300
Recycling Time Auto Mode
Almost instantly
Recycling Time at full power
Approximate 4-6 sec
Power Source
4x AA Alkaline, NiCad or NiMH batteries
Dimension (mm)
76 (W) x 137 (H) x 60(L)
290g (without batteries)
Bower warranty
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